Universal-joint coupling



- (No Model.) H y M. HARVEY. Universal Joint Coupling.

No. 239,952, Patented April 12,1881.

. UNITED STATES PATENT OFFICE.

MATTHEW HARVEY, OF ROCKFORD, ILLINOIS.

UNIVERSAL-JOINT COUPLING.

SPECIFICATION forming part of Letters Patent No. 239,952, dated April12,. 1881.

Applicationfiled March 1, 1881. (No model.) i

shafting for various purposes; and its construction and application willbe hereinafter more fully'explained.

In the accompanying drawings, Figure l is a side View of my improvedcoupling, of which Fig. 2 is a lengthwise central section. Fig. 3

is an isometrieal transverse sectional view of the couplin g-rin g cuton the waved dotted line a: through the bearing centers of theconnecting bolts or rods. Fig. 4 is an isometrical representation of oneof the chilled bearings.

In the figures, A represents the couplingheads of the shaft, in thisinstance fitted with axial openings, rectangular in cross-section,adapted to receive the square end portions 60 of the shaft-ing B. Thesecoupling-heads are provided with coupling-arms (l, projecting in theirlengthwise direction from opposite sides of their end portions, withtransverse holes to receive the coupling-pins b, all of which issubstantially the same as like parts now in general use in universalcouplings.

At D is represented the coupling-ring, circular in plan, having a smoothouter surface. This ring at quarter-spaces is provided with radialopenings, as at c and d, adapted to receive suitable bearings designedto receive the end portions of the couplin gpius. These openings at oneor both sides are provided with holes 0, passing through the ringparallel with its axial center in such a manner that the center of thehole will be about on the line of the end wall of the opening in thering, as represented at e in the opening a. y

At his represented the removable bearin gs, made from any suitablematerial, as of chilled iron or cast-steel, but preferably of what isknown as hard or white iron, and are produced of proper size and form toenter the openings 0 and d in the ring, and are provided with a centralaxial opening, t, extending from their inner end outward, producing atubular opening, with closed outer end, of proper form and dimensions toreceive the end portions of couplingpins. These bearings are formed withsemicircular recess k, of the proper size, and in position to coincidewith the semicircular portion of the holes 0, producing a circular hole,when the bearing is in position in its seat in the ring, to receive apin or pins, as at l, to fix the hearings in the ring in' a removablemanner.

The coupling-ring D, at points on radial lines opposite the removablebearings of the openings 0 and d, are provided with bearings m, in everyparticular the same as the removable bearings h but in this instancethese bearings m are fixed, having been placed in position in the moldof the ring, and the molten metal to form the ring poured into the mold,forming the ring inclosing the bearings. The coupling-ring is of suchwidth as to permit the hearings, in pairs, to be placed toward theopposite edges thereof to such an extent as to permit the coupling-pinsplaced in the bearings to cross each other in the center of the ring.The coupling-pins, as at d, are out to proper length from suitable barsof iron or steel.

In putting my improved coupling together the coupling-head is placed inthe ring in po-- sition. A coupling-pin is then passed through theopening 0 or d, depending upon the position of the'head relatively withthe bearings, and through the arms of the coupling-head into the fixedbearing on the opposite side of the ring. The. removable bearing is thenput in place in the opening in the ring in such a manner as to receivethe end portion of the coupling-pin in its axial opening, and when inplace in the ring a pin or pins of proper di? mensions is driven intothe holes 6, which fixes the bearing in position and connects thecoupling-head with the ring in a properlyrhinged manner. This sameoperation is repeated in placing the second head in position in thering, which, when accomplished, presents the coupling complete, readyfor the trade or for use. In theforegoing I have shown and described buttwo of the tubular hearings as'beingremovable and the opposite bearingsto these as fixed in the ring, which arrangement I prefer; but it willreadily be seen that instead of removable chilled or hard-metalbearings, subthe fixed bearings removable bearings may be stantially asand for the purpose hereinbefore 2o substituted, in which arrangement orconstrucset forth.

tion the several-parts may be renewed as oc- 3. The combination, withthe removable 5 casion may require. bearings, of removablecoupling-pins, substan- By this construction I produce asafety-couptially as and for the purpose hereinbefore set ling having asmooth exterior free from 'proforth. 25'

jecting parts, liable to engage anything with 4. The combination, withthe coupling-ring, which they come in contact, and a couplingsubstantially asherein described, of coupling- 10 provided with durablebearings, and in which heads connected therewith by means of removany ofthe parts may be changed when WOT'I) able coupling-pins having removablebearings,

or broken. substantially as and for the purpose hereinbec I claim as myinventionfore set forth. 1. A coupling-ring in one piece having aMATTHEW HARVEY I 5 smooth exterior and provided with removable bearings,substantially as and for the purpose 7 Witnesses: hereinbefore setforth. J. D. EALsroN,

2. The combination, with a coupling-ring of V A.- O. BEHEL.

